公开(公告)号：US12220667B2

公开(公告)日：2025-02-11

申请号：US17645380

申请日：2021-12-21

Applicant: THE PENN STATE RESEARCH FOUNDATION

Inventor： Manish Kumar ,  Tingwei Ren ,  Woochul Song ,  Yu-Ming Tu

IPC: B01D67/00 ,  B01D69/14 ,  B01D71/24 ,  B01D71/26 ,  B01D71/52 ,  B01D71/56 ,  B01D71/80 ,  C07K14/245 ,  C07K14/31 ,  C07K14/47

Abstract: The present disclosure describes compositions and methods for preparing membrane protein nanosheets and two-dimensional crystals. In particular, the methods employ a solvent. A mixture of a polymer and a membrane protein is solubilized in the solvent, applied to a substrate, and subsequently dried to form the nanosheet or two-dimensional crystal. Applicants have surprisingly found that the membrane proteins maintain their structure when exposed to solvents during the short processing time utilized.

公开(公告)号：US20250025835A1

公开(公告)日：2025-01-23

申请号：US18712933

申请日：2022-11-21

Applicant: NSS Water Enhancement Technology AB

Inventor： Björn Holmström

IPC: B01D61/36 ,  B01D69/02 ,  B01D69/12 ,  B01D71/26 ,  B01D71/34 ,  B01D71/36

Abstract: A membrane distillation assembly for providing purified water, and to a membrane distiller including an evaporation chamber, a condensation chamber, and a membrane separating the evaporation chamber and the condensation chamber from each other. The membrane has a pore size equal to or less than 1000 nanometres. The membrane distiller wherein the membrane is a multi-layer polymer membrane including a nonwoven first layer having a pore size equal to or less than 1000 nanometres and a spunbonded second layer that is laminated to the first layer. The second layer is facing the condensation chamber.

公开(公告)号：US20250019482A1

公开(公告)日：2025-01-16

申请号：US18766484

申请日：2024-07-08

Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM

Inventor： Benny Freeman ,  Noah Wamble ,  Joan F. Brennecke ,  Ben Pedretti ,  Nate Lynd ,  Adam Mann ,  Gabriel Sanoja

IPC: C08F297/02 ,  B01D53/22 ,  B01D61/14 ,  B01D67/00 ,  B01D69/02 ,  B01D71/26 ,  B01D71/28 ,  B01D71/52 ,  B01D71/80 ,  C08F297/04

Abstract: Disclosed is a tetrablock polymer including the formula ABAC, wherein A, B and C are each blocks of the polymer, where A is a glassy block; B is a rubbery block; and C is a hydrophilic block. Also, a membrane including any of the disclosed polymers organized to define pores with an average pore diameter of about 15 nm to about 50 nm is disclosed. A supported ionic liquid membrane including any of the disclosed membranes and an ionic liquid within the pores are also disclosed. Methods of forming a membrane and methods of purifying a liquid or gas are disclosed.

公开(公告)号：US12161973B2

公开(公告)日：2024-12-10

申请号：US18477662

申请日：2023-09-29

Applicant: FUJIFILM Corporation

Inventor： Tetsuya Kamimura ,  Satomi Takahashi ,  Tadashi Omatsu ,  Tetsuya Shimizu

IPC: B01D67/00 ,  B01D3/14 ,  B01D61/58 ,  B01D65/02 ,  B01D69/02 ,  B01D71/26 ,  B01D71/28 ,  B01D71/32 ,  B01D71/56 ,  B01D71/68 ,  H01L21/67

Abstract: A filtering device is used for obtaining a chemical liquid by purifying a liquid to be purified and includes an inlet portion, an outlet portion, a filter A, at least one filter B different from the filter A, and a flow path that includes the filter A and the filter B arranged in series and extends from the inlet portion to the outlet portion. The filter A has a porous membrane made of ultra-high-molecular-weight polyethylene and a resin layer disposed to cover at least a portion of the surface of the porous membrane, and the resin layer includes a resin having a neutral group or an ion exchange group.

公开(公告)号：US12157095B2

公开(公告)日：2024-12-03

申请号：US17262008

申请日：2019-07-23

Applicant: TEIJIN LIMITED

Inventor： Ayumi Iwai ,  Koji Furuya ,  Yu Nagao ,  Yoshikazu Ikuta

IPC: B01D71/26 ,  B01D69/02

Abstract: The present disclosure provides a substrate for a liquid filter, including: a polyolefin microporous membrane, in which a mean flow pore size in a pore size distribution of the polyolefin microporous membrane measured by a half dry method according to gas-liquid phase substitution is from 1 nm to 50 nm, a calcium content in the polyolefin microporous membrane is 2,000 ppb or less, and a ratio of a tensile elongation in a longitudinal direction (MD) to a tensile elongation in a width direction (TD) perpendicular to the longitudinal direction (MD/TD tensile elongation ratio) of the polyolefin microporous membrane is from 0.47 to less than 0.96 or from more than 1.25 to 7.

公开(公告)号：US12109537B1

公开(公告)日：2024-10-08

申请号：US18444479

申请日：2024-02-16

Applicant: KING FAISAL UNIVERSITY

Inventor： Junaid Saleem ,  Safdar Hossain Sk ,  Zubair Khalid Baig Moghal ,  Gordon McKay

IPC: B01D61/14 ,  B01D17/04 ,  B01D69/02 ,  B01D69/12 ,  B01D71/26

CPC classification number: B01D69/02 ,  B01D17/04 ,  B01D61/147 ,  B01D69/1218 ,  B01D71/262 ,  B01D2325/0233 ,  B01D2325/04 ,  B01D2325/06 ,  B01D2325/24 ,  B01D2325/38

Abstract: A bi-layered superhydrophobic membrane includes top and base layers formed from polypropylene. The bi-layered superhydrophobic membrane can have a thickness ranging from about 100 μm to about 1 mm. When subjected to oil-water emulsion separations, the superhydrophobic membrane can achieve an organic solvent flux of 14,000 Lm−2h−1 with a 96% water rejection. The bi-layered superhydrophobic membrane can be effectively used for water filtration, providing both selectivity and permeability, while offering an eco-friendly solution for reuse of polypropylene plastic waste.

公开(公告)号：US20240317952A1

公开(公告)日：2024-09-26

申请号：US18611853

申请日：2024-03-21

Applicant: HYDROLITE LTD

Inventor： Charly David AZRA ,  Yauhen AKAYEU ,  Amiram SISSO

IPC: C08J5/22 ,  B01D67/00 ,  B01D69/02 ,  B01D71/26 ,  B01D71/28 ,  B01D71/78 ,  B01J41/05 ,  B01J41/14 ,  B01J47/12 ,  C02F1/46 ,  C08J3/00 ,  C08J3/24 ,  C08J7/12 ,  C25B13/08 ,  H01M8/0221

CPC classification number: C08J5/2287 ,  B01D67/0006 ,  B01D69/02 ,  B01D71/26 ,  B01D71/281 ,  B01D71/78 ,  B01J41/05 ,  B01J41/14 ,  B01J47/12 ,  C02F1/4604 ,  C08J3/005 ,  C08J3/24 ,  C08J7/123 ,  C25B13/08 ,  H01M8/0221 ,  B01D2323/081 ,  B01D2323/30 ,  B01D2323/385 ,  B01D2323/60 ,  B01D2325/42 ,  C08J2323/06 ,  C08J2327/04 ,  C08J2353/02 ,  C08J2423/06 ,  C08J2427/04 ,  C08J2453/02

Abstract: Methods of preparing reinforced anion exchange membranes are provided, as well as produced membranes and corresponding devices utilizing the membranes. Methods comprise compounding a halide-functionalized polymer (selected to react with amines to yield anion-conducting quaternary amine groups) with thermoplastic polymer(s) (selected to support and/or reinforce the membrane), and with copolymer(s) (selected to enhance the compounding of the polymers)—by heating, mixing and cooling—to form blend pellets, extruding the blend pellets to form a blend film, cross-linking polymer(s), and functionalizing the blend film to prepare the anion exchange membrane. Functionalization comprises a quaternization step comprising reacting halogen groups of the first polymer with tertiary amines to produce the quaternary amine groups with ion-exchange functionality. Reinforced anion exchange membranes are provided, which are produced by the disclosed methods, functionalized to yield a membrane for fuel cell(s), electrolyzer(s), reversible electrochemical device(s), desalination unit(s), etc.

公开(公告)号：US20240254303A1

公开(公告)日：2024-08-01

申请号：US18594101

申请日：2024-03-04

Applicant: Celgard, LLC

Inventor： Takahiko Kondo ,  Masaaki Okada ,  Stefan Reinartz ,  Daniel R. Alexander

IPC: C08J9/42 ,  B01D69/10 ,  B01D69/12 ,  B01D71/26 ,  B01D71/38 ,  H01G9/02 ,  H01G11/52 ,  H01M8/0239 ,  H01M10/052 ,  H01M50/414 ,  H01M50/489 ,  H01M50/491 ,  H01M50/494 ,  H01M50/497

CPC classification number: C08J9/42 ,  B01D69/1071 ,  B01D69/1216 ,  B01D71/261 ,  B01D71/262 ,  B01D71/381 ,  H01M8/0239 ,  H01M10/052 ,  H01M50/414 ,  H01M50/489 ,  H01M50/491 ,  H01M50/494 ,  H01M50/497 ,  B01D2325/021 ,  B01D2325/0281 ,  C08J2323/06 ,  C08J2323/12 ,  H01G9/02 ,  H01G11/52

Abstract: A novel or improved base film for impregnation, impregnated base film, product incorporating the impregnated base film, and/or related methods as shown, claimed or described herein.

公开(公告)号：US20240182340A1

公开(公告)日：2024-06-06

申请号：US18061381

申请日：2022-12-02

Applicant: California Institute of Technology

Inventor： Harry A. Atwater ,  Chengxiang Xiang ,  Ibadillah A. Digdaya

IPC: C02F9/00 ,  B01D53/62 ,  B01D61/44 ,  B01D61/50 ,  B01D69/02 ,  B01D69/08 ,  B01D69/12 ,  B01D69/14 ,  B01D71/26 ,  B01D71/52 ,  B01J31/06 ,  B01J35/06 ,  C01F11/18

CPC classification number: C02F9/00 ,  B01D53/62 ,  B01D61/445 ,  B01D61/50 ,  B01D69/02 ,  B01D69/08 ,  B01D69/1216 ,  B01D69/144 ,  B01D69/145 ,  B01D71/261 ,  B01D71/262 ,  B01D71/5211 ,  B01J31/06 ,  B01J35/065 ,  C01F11/181 ,  B01D2251/304 ,  B01D2251/604 ,  B01D2257/504 ,  C02F2001/007

Abstract: A dual-pathway system for CO2 capture in both acidified and basified streams is provided. The system may be embodied in an off-shore stand-alone facility to allow for the operation of oceanic CO2 capture to be more efficient and cost effective. Systems maintain high environmental standards by containing all intermediate acidic and alkaline solutions in a closed system so that the effluent discharged back into the ocean is at the similar pH and salinity as the feed oceanwater, with only CO2 removed. Acid and base produced by an electrodialyzer unit is used to achieve oceanwater decarbonization via gaseous CO2 removal and solid CaCO3 precipitates removal. The system is configured to require the processing of a very small fraction of the total oceanwater intake for the acid-base generation process.

公开(公告)号：US20230415101A1

公开(公告)日：2023-12-28

申请号：US18248754

申请日：2020-10-28

Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

Inventor： Changjiang WU ,  Xin WEI ,  Hesheng LI ,  Xinmiao ZHANG ,  Jie SUN ,  Chenghong WANG ,  Yujie WANG ,  Fanning MENG

IPC: B01D67/00 ,  B01D69/02 ,  B01D53/22 ,  B01D71/26 ,  B01D69/08 ,  C07F7/00

CPC classification number: B01D67/0079 ,  B01D2325/22 ,  B01D67/00933 ,  B01D67/0083 ,  B01D53/228 ,  B01D71/262 ,  B01D69/08 ,  B01D71/261 ,  C07F7/003 ,  B01D2325/02831 ,  B01D2325/02832 ,  B01D2325/02833 ,  B01D2325/02834 ,  B01D2323/385 ,  B01D2323/081 ,  B01D2323/10 ,  B01D2325/38 ,  B01D2325/24 ,  B01D2325/30 ,  B01D69/02

Abstract: A metal-organic framework material separation membrane and a preparation method for the metal-organic framework material separation membrane are provided. The metal-organic framework material separation membrane has a base membrane and a metal-organic framework material functional layer. The metal-organic framework material functional layer comprises has an inter-embedded polyhedron structure. The preparation metal-organic framework material separation membrane includes the steps of: (1) preparing a solution containing a first organic solvent, an organic ligand, a metal compound, and an auxiliary agent; (2) subjecting a base membrane to a pretreatment, involving introducing, on the surface of the base membrane, metal atoms from the metal compound of step (1); and (3) mixing the pretreated base membrane of step (2) with the solution of step (1) to obtain a first mixture, and then heating the first mixture for reaction, so as to prepare a metal-organic framework material separation membrane.